Cedar Creek Ecosystem Science Reserve site, station Old Field 26 at Cedar Creek, study of plant biomass of Eragrostis spectabilis in units of gramsPerSquareMeter on a yearly timescale

The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Cedar Creek Ecosystem Science Reserve (CDR) contains plant biomass of Eragrostis spectabilis measurements in gramsPerSquareMeter units and were aggregated to a yearly timescale.

EcoTrends项目（EcoTrends project）于2004年由黛布拉·彼得斯博士（约拿盆地长期生态研究网，美国农业部农业研究局约拿实验牧场）与阿里尔·卢戈博士（卢奎洛长期生态研究网，美国农业部林业局卢奎洛实验林）创立，旨在支持长期生态数据集的采集与分析工作。本项目是一项大型综合研究计划，核心目标是提升长期生态数据的可获取性与使用率。目前，已有约50个由州政府及联邦政府资助的研究站点参与并向EcoTrends项目贡献数据，其中包含全部26个长期生态研究（Long-Term Ecological Research, LTER）站点，以及由美国农业部农业研究服务局（Agricultural Research Service, ARS）、美国农业部林业局、美国能源部、美国地质调查局（United States Geological Survey, USGS）及众多高校资助的研究站点。EcoTrends项目的数据可通过探索性网络门户（http://www.ecotrends.info）获取。该网络门户依托交互式Web应用程序，支持用户持续开展数据整合与访问工作。依托长期生态研究网溯源感知综合跟踪架构（Provenance Aware Synthesis Tracking Architecture, PASTA），项目组通过人工与自动处理相结合的方式，对正在进行的数据整合工作进行更新。该网络门户是约拿LTER与LTER网络办公室的合作成果。来自锡达溪生态科学保护区（Cedar Creek Ecosystem Science Reserve, CDR）的下述数据集包含以克每平方米（gramsPerSquareMeter）为单位的细叶画眉草（Eragrostis spectabilis）植物生物量测量数据，且已按年尺度进行聚合。